Cloaking Forum

I have sites who want to post scaled down versions of my pages on their sites as pop-ups (No URL would show). These would be basically video-only pages that are subsets of my full text-and-video pages.

I'm inclined to provide the sites with URLs for my full pages and, by detecting the referal site, sending traffic comming from these partner sites the scaled back pages. These visitors would be getting video only pages rather than full pages with text and video players.

Is this running afoul of SE guidelines?

Do the SE bots ever pass a referal string in the HTTP header, as though they are actually following a link from the referring site? This would be a prob as the SE's would then receive diffferent versions of the page.

Would a better (safer, less likely to raise SE issues) approach be to use a URL that has a video only tag appended (i.e. ?vid=y) and add the canonical metatag to flow link value through to the underlying text-with-video page?